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A092803 as a simple table

n a(n)
0 1
1 3
2 12
3 60
4 336
5 1968
6 11712
7 70080
8 420096
9 2519808
10 15117312
11 90700800
12 544198656
13 3265179648
14 19591053312
15 117546270720
16 705277526016
17 4231664959488
18 25389989363712
19 152339935395840
20 914039610802176

[1,3,12,60,336,1968,11712,70080,420096,2519808,
 15117312,90700800,544198656,3265179648,
 19591053312,117546270720,705277526016,
 4231664959488,25389989363712,152339935395840,
 914039610802176]

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Last modified March 29 09:14 EDT 2024. Contains 371268 sequences. (Running on oeis4.)